The Solano County Coroner's Office confirmed that Darryl Grier, 55, from Vallejo, died Thursday.

Grier died on scene when the load of the tractor trailer he was driving rolled over the K-rail on the Interstate 680 onramp as he exited eastbound Interstate 80 just after 4:30 p.m.

A "major extraction" was called for the driver who was pinned into the cab of the truck. The onramp was closed for three hours to allow for completion of the investigation and to upright the tractor trailer with a tow truck. The rest of I-80 remained opened.

During the preliminary investigation, California Highway Patrol was determining the rate of speed as well as a possible shift in the load. California Highway Patrol said the truck was hauling thousands of pounds of bottled wine.

The California Department of Transportation also assisted with clean up on scene and Sigalerts along I-80.